CVE-2024-42487

Name: CVE-2024-42487
Creator: NVD / NIST
Published: 2024-08-15T21:15:16.997+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.53%

Last modified Jun 17, 2026

CVE-2024-42487 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In the 1.15 branch prior to 1.15.8 and the 1.16 branch prior to 1.16.1, Gateway API HTTPRoutes and GRPCRoutes do not follow the match precedence specified in the Gateway API specification. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

Description

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In the 1.15 branch prior to 1.15.8 and the 1.16 branch prior to 1.16.1, Gateway API HTTPRoutes and GRPCRoutes do not follow the match precedence specified in the Gateway API specification. In particular, request headers are matched before request methods, when the specification describes that the request methods must be respected before headers are matched. This could result in unexpected behaviour with security This issue is fixed in Cilium v1.15.8 and v1.16.1. There is no workaround for this issue.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.53%

41.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cilium	Cilium	>= 1.15.0, < 1.15.8
Cilium	Cilium	1.16.0

References

https://github.com/cilium/cilium/commit/a3510fe4a92305822aa1a5e08cb6d6c873c8699aPatch, Third Party Advisory
https://github.com/cilium/cilium/pull/34109Patch, Third Party Advisory
https://github.com/cilium/cilium/security/advisories/GHSA-qcm3-7879-xcwwVendor Advisory

Timeline

Published: Aug 15, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-42487?

How severe is CVE-2024-42487?

CVE-2024-42487 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.

How do I fix CVE-2024-42487?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-42487?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST